Zephyr Titan Island AK7736AS Guide D'utilisation, D'entretien Et D'installation page 9

WARNING FIRE HAZARD
NEVER exhaust air or terminate duct work into spaces between walls, crawl spaces, ceiling, attics or garages.
All exhaust must be ducted to the outside.
Use rigid metal ductwork only.
Fasten all connections with sheet metal screws and tape all joints with certified Aluminum Tape or Duct Tape.
Some Ducting Options
Roof Pitch w/
Flashing & Cap
Soffit or crawl space
7
side wall cap
w/ gravity damper